AHI CHART VERTICAL AXIS (BUG?)

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
MalabarFlash
Posts: 26
Joined: Wed Nov 13, 2013 12:22 pm

AHI CHART VERTICAL AXIS (BUG?)

Post by MalabarFlash » Mon Nov 18, 2013 11:20 pm

System One RemStar Pro with C-Flex+ (460P)

Three days ago the vertical axis on all my AHI charts was 15.0. Today it was 5.0. I discovered that I could change the value of the axis without changing the shape of the plot. This means I can not determine what the true values are.

By going to another date selecting a portion of any chart and clicking the reset and 100% buttons I can change the max value of the AHI chart for every day. Here are two snips of the same date and same data with different y-axis ranges.

https://docs.google.com/file/d/0B3l_Hn0 ... xFd1k/edit
https://docs.google.com/file/d/0B3l_Hn0 ... dKQ2s/edit

The only difference in the two links is the vertical axis on the AHI charts.

Is this a bug or something I have inadvertently set incorrectly?
Last edited by MalabarFlash on Mon Nov 18, 2013 11:49 pm, edited 1 time in total.

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Todzo
Posts: 2014
Joined: Tue Apr 24, 2012 8:51 pm
Location: Washington State U.S.A.

Re: AHI CHART VERTICAL AXIS

Post by Todzo » Mon Nov 18, 2013 11:30 pm

MalabarFlash wrote:System One RemStar Pro with C-Flex+ (460P)

Three days ago the vertical axis on all my AHI charts was 15.0. Today it was 5.0. I discovered that I could change the value of the axis without changing the shape of the plot. This means I can not determine what the true values are.

By going to another date selecting a portion of any chart and clicking the reset and 100% buttons I can change the max value of the AHI chart for every day. Here are two snips of the same date and same data with different y-axis ranges.

https://docs.google.com/file/d/0B3l_Hn0 ... xFd1k/edit
https://docs.google.com/file/d/0B3l_Hn0 ... dKQ2s/edit

The only difference in the two links is the vertical axis on the AHI charts.

Is this a bug or something I have inadvertently set incorrectly?
I think that is goind to turn out to be a bug.

What I like to do that does seem to work is to watch my cursor as I move it vertically until it turns into double up/down arrows. Then I use the arrows to drag the particualr chart and "expand" the view of that chart. I did not know about the attempt to make the range of the chart variable but I difinately appareciate the efforts.
May any shills trolls sockpuppets or astroturfers at cpaptalk.com be like chaff before the wind!

MalabarFlash
Posts: 26
Joined: Wed Nov 13, 2013 12:22 pm

Re: AHI CHART VERTICAL AXIS (BUG?)

Post by MalabarFlash » Wed Nov 20, 2013 9:47 am

According to the SleepyHead author/programmer this problem can be fixed by unchecking "use pixmap caching" in the FILE, PREFERENCES, APPEARANCE menu. Consider this post closed.